<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Skeleton Screen Loading组件</title>
  <style>
    .timeline-item {
      background: #fff;
      border: 1px solid;
      border-color: #e5e6e9 #dfe0e4 #d0d1d5;
      border-radius: 3px;
      padding: 12px;
      margin: 0 auto;
      max-width: 472px;
      min-height: 200px;
    }

    @keyframes placeHolderShimmer {
      0% {
        background-position: -468px 0
      }
      100% {
        background-position: 468px 0
      }
    }

    .animated-background {
      animation-duration: 1s;
      animation-fill-mode: forwards;
      animation-iteration-count: infinite;
      animation-name: placeHolderShimmer;
      animation-timing-function: linear;
      background: #f6f7f8;
      background: linear-gradient(to right, #eeeeee 8%, #dddddd 18%, #eeeeee 33%);
      background-size: 800px 104px;
      height: 40px;
      position: relative;
    }


    .background-masker {
      background: #fff;
      position: absolute;
    }

    /* Every thing below this is just positioning */

    .background-masker.header-top,
    .background-masker.header-bottom,
    .background-masker.subheader-bottom {
      top: 0;
      left: 40px;
      right: 0;
      height: 10px;
    }

    .background-masker.header-left,
    .background-masker.subheader-left,
    .background-masker.header-right,
    .background-masker.subheader-right {
      top: 10px;
      left: 40px;
      height: 8px;
      width: 10px;
    }

    .background-masker.header-bottom {
      top: 18px;
      height: 6px;
    }

    .background-masker.subheader-left,
    .background-masker.subheader-right {
      top: 24px;
      height: 6px;
    }


    .background-masker.header-right,
    .background-masker.subheader-right {
      width: auto;
      left: 300px;
      right: 0;
    }

    .background-masker.subheader-right {
      left: 230px;
    }

    .background-masker.subheader-bottom {
      top: 30px;
      height: 10px;
    }

    .background-masker.content-top,
    .background-masker.content-second-line,
    .background-masker.content-third-line,
    .background-masker.content-second-end,
    .background-masker.content-third-end,
    .background-masker.content-first-end {
      top: 40px;
      left: 0;
      right: 0;
      height: 6px;
    }

    .background-masker.content-top {
      height: 20px;
    }

    .background-masker.content-first-end,
    .background-masker.content-second-end,
    .background-masker.content-third-end {
      width: auto;
      left: 380px;
      right: 0;
      top: 60px;
      height: 8px;
    }

    .background-masker.content-second-line {
      top: 68px;
    }

    .background-masker.content-second-end {
      left: 420px;
      top: 74px;
    }

    .background-masker.content-third-line {
      top: 82px;
    }

    .background-masker.content-third-end {
      left: 300px;
      top: 88px;
    }
  </style>
  <script src="./vue.js"></script>
</head>

<body>
    <div id="app">
        <div v-for="user in users" class="items" v-if="loading">
          <user-item :name="user.name" :email="user.email"></user-item>
        </div>
        <div v-for="load in loades" v-if="!loading">
          <loading-item></loading-item>
        </div>
      </div>
</body>
<script>
  Vue.component('user-item', {
    props: ['email', 'name'],
    template: `<div>
                <h2 v-text="name"></h2>
                <p v-text="email"></p>
            </div>`
  })

  Vue.component('loading-item', {
    template: `<div class="animated-background">
        <div class="background-masker header-top"></div>
        <div class="background-masker header-left"></div>
        <div class="background-masker header-right"></div>
        <div class="background-masker header-bottom"></div>
        <div class="background-masker subheader-left"></div>
        <div class="background-masker subheader-right"></div>
        <div class="background-masker subheader-bottom"></div>
      </div>`
  })
  var app = new Vue({
    el: '#app',
    data: {
      users: [],
      loading: false,
      loades: 10
    },
    methods: {
      getUserDetails: function () {
        fetch(`https://jsonplaceholder.typicode.com/users`)
          .then(result => result.json())
          .then(result => {
            this.users = result
            this.loading = true
          });
      }
    },
    created: function () {
      setTimeout(() => {
        this.getUserDetails()
      }, 1000);
    }
  });
</script>

</html>